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| Paper Abstract and Keywords | ||
| Presentation | 2017-07-20 13:35 OFDM Visible Light Communication using off-the-shelf video camera Shota Shimada (Hokkaido Univ.), Takayuki Akiyama (SOKENDAI), Hiromichi Hashizume (NII), Masanori Sugimoto (Hokkaido Univ.)  RCC2017-35 NS2017-56 RCS2017-127 SR2017-50 ASN2017-44 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Visible Light Communication (VLC) is one of the communication technologies which can control commu- nication areas because of the directivity of light. Challenges of VLC using off-the-shelf video cameras mounted on smartphones are related to its low communication speeds (a couple of kbps at maximum) and short exposure time setting for decoding on-off keying signals. In this paper, we propose a novel VLC method which works at an arbitrary exposure time value and achieves higher communication speeds than conventional methods. In the proposed method, symbols encoded by Quadrature Amplitude Modulation (QAM) and modulated by Orthogonal Frequency Division Multiplexing (OFDM) are transmitted from LED surface illuminations. Transmitted symbols are captured by sensors of a rolling-shutter video camera. We revealed that our method can communicate more than 10Mbps ideally. The theoretical formula shows that there is a change in the phase amplitude characteristic of the carrier wave depending on the exposure time of the camera, and its consistency was confirmed by simulation and measurement experiment. We plan to improve the communication speed and extend the communication distance of the proposed method in our future work. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Visible Light Communication / QAM / OFDM / CMOS image sensors / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 134, ASN2017-44, pp. 153-158, July 2017. | |
| Paper # | ASN2017-44 | |
| Date of Issue | 2017-07-12 (RCC, NS, RCS, SR, ASN) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | RCC2017-35 NS2017-56 RCS2017-127 SR2017-50 ASN2017-44 |
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| Conference Information | |
| Committee | NS ASN RCC RCS SR |
| Conference Date | 2017-07-19 - 2017-07-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hokkaido Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Distributed Network, M2M (Machine-to-Machine), D2D (Device-to-Device)，etc. |
| Paper Information | |
| Registration To | ASN |
| Conference Code | 2017-07-NS-ASN-RCC-RCS-SR |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | OFDM Visible Light Communication using off-the-shelf video camera |
| Sub Title (in English) | |
| Keyword(1) | Visible Light Communication |
| Keyword(2) | QAM |
| Keyword(3) | OFDM |
| Keyword(4) | CMOS image sensors |
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| 1st Author's Name | Shota Shimada |
| 1st Author's Affiliation | Hokkaido University (Hokkaido Univ.) |
| 2nd Author's Name | Takayuki Akiyama |
| 2nd Author's Affiliation | The Graduate University for Advanced Studies (SOKENDAI) |
| 3rd Author's Name | Hiromichi Hashizume |
| 3rd Author's Affiliation | National Institute of Informatics (NII) |
| 4th Author's Name | Masanori Sugimoto |
| 4th Author's Affiliation | Hokkaido University (Hokkaido Univ.) |
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| Speaker | Author-1 |
| Date Time | 2017-07-20 13:35:00 |
| Presentation Time | 25 minutes |
| Registration for | ASN |
| Paper # | RCC2017-35, NS2017-56, RCS2017-127, SR2017-50, ASN2017-44 |
| Volume (vol) | vol.117 |
| Number (no) | no.130(RCC), no.131(NS), no.132(RCS), no.133(SR), no.134(ASN) |
| Page | pp.121-126(RCC), pp.135-140(NS), pp.175-180(RCS), pp.133-138(SR), pp.153-158(ASN) |
| #Pages | 6 |
| Date of Issue | 2017-07-12 (RCC, NS, RCS, SR, ASN) |
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